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Finding the Fourth Proportional to 368,790.48, 508,979.34 and 207,677.04

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Solution

The fourth proportional to 368,790.48, 508,979.34 and 207,677.04 is: 286,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,790.48 : 508,979.34 = 207,677.04 : x
  2. Step 2: Convert to fraction form
    368,790.48/508,979.34 = 207,677.04/x
  3. Step 3: Cross multiply
    368,790.48x = 508,979.34 × 207,677.04
  4. Step 4: Simplify right side
    368,790.48x = 105,703,322,752.35
  5. Step 5: Solve for x
    x = 105,703,322,752.35/368,790.48
  6. Step 6: Final answer
    x = 286,621.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.